CLEGG IMPACT SOIL TESTER Type CIST/882

The Classic Clegg Impact Soil Tester type CIST/882 manufactured by SD Instrumentation (SDi) provides a means for measuring and controlling soil strength and consolidation levels during trench reinstatement. It is also used to confirm uniform compaction over wide areas of ground, identifying poorly compacted areas and ineffective rolling of materials.   The Tester consists of a 4.5 kg compaction hammer operating within a vertical guide tube. When the hammer is released from a fixed height, it falls through the tube and strikes the surface under test, decelerating at a rate determined by the stiffness of the material within the region of impact. A precision accelerometer mounted on the hammer generates an electrical charge which is fed by a cable to a hand-held digital readout unit. The readout unit scans and filters the signal and registers the deceleration in units of Impact Value (IV). The Impact Value is an indication of soil strength and shows good correlation with results from CBR tests. Data from the Impact Soil Tester can therefore be used in a similar manner to results from CBR tests performed in the laboratory and in the field.  Specifications:  Model Number: CIST/882/4K5 Hammer Weight: 4.5 Kg.  Bumble Bee Guide Tube: Strong Anodised Yellow Aluminium, Black Acetal Base Flange & Handle. Readout Display (alphanumeric): Backlit – easy to view. Handheld readout unit. Readout Range: Up to 101 Impact Values (IV). Power Source: 3V:  2 x AA batteries located behind detachable rear sealed panel. Battery Life: 12 Month typical battery life - dependent upon frequency of usage. Power ‘On’ & Controls: Single momentary push button - also enables / disables %CBR Display. Data Storage in Readout: N/A. (but available with the CIST/884 and optionally with CIST/883 models). Readout Displaying %CBR: Enabled / disabled by pressing & holding the ‘On’ button. When enabled displays 4th drop %CBR value (with Inter-drop IV check TREND algorithm). Transit & Storage Case: Type CIST/ATS/15. Aluminium framed case for added protection in transit. Size & Weight (packed): Approx: 83 x 31 x 29 cm. Weight in case approx. 15 Kg. View Brochure